NBR O-Ring Packing, 6 mm Thickness | Sealing Tech-G

The Sealing Tech-G NBR (Nitrile Butadiene Rubber) O-ring with 6 mm thickness is a metric O-ring compliant with DIN 3771 and ISO 3601 standards, widely used in European and Asian industrial process machinery. With 17 internal diameters available from 47 mm to 175 mm, this replacement catalog covers a wide range of medium to large diameter equipment: from compact valves and pumps (ID 47–62 mm) to large industrial flanges, pressure vessels, and process equipment (ID 110–175 mm). The 6 mm thickness provides a robust cross-section that ensures greater compression, better extrusion resistance, and longer service life in high-pressure applications with aggressive fluids. Highly compatible with oils, fuels, lubricants, water, and numerous non-polar solvents.

Applications by Diameter Range

• ID 47–62 mm: Industrial ball, butterfly, and gate valves, compact hydraulic and pneumatic cylinders, actuators, and process pumps
• ID 85–100 mm: Centrifugal and positive displacement pumps, industrial compressors, lid and body seals in process equipment
• ID 110–138 mm: Industrial pipe flanges, heat exchangers, inspection and lid seals in chemical process equipment
• ID 150–175 mm: Large industrial flanges, pressure vessels, chemical reactors, inspection covers in large diameter equipment
• Direct replacement in machinery compliant with DIN 3771 or ISO 3601 with 6 mm seal thickness
• High-pressure hydraulic and pneumatic systems with European metric standard
• Chemical, food, and pharmaceutical process machinery: flange and lid seals
• Maintenance and repair of imported industrial equipment with 6 mm thick metric dimensions

Technical Specifications

• Material: NBR (Nitrile Butadiene Rubber)
• Seal thickness (CS): 6 mm
• Reference standards: DIN 3771, ISO 3601
• Available internal diameters: 47 / 48 / 50 / 62 / 85 / 88 / 95 / 96 / 100 / 110 / 130 / 138 / 150 / 158 / 160 / 170 / 175 mm
• Temperature range: -30 °C to +100 °C (peaks up to +120 °C)
• Chemical resistance: Mineral oils, fuels, lubricants, water, non-polar solvents
• Configuration: O-ring
• Unit of sale: Unit
• Country of origin: Taiwan
• Brand: Sealing Tech-G

Chemical Compatibility

NBR is compatible with mineral oils, fuels, lubricants, water, and non-polar solvents. It is not compatible with concentrated acids, ketones, esters, ozone, or glycol-based brake fluids. For these applications, consider EPDM or VITON O-rings.

Other Common Names

This component is also known as: NBR o-ring 6 mm thickness, nitrile o-ring 6mm CS, NBR round gasket 6mm, DIN 3771 NBR o-ring 6mm, NBR O-ring ISO 3601 6mm, metric NBR o-ring 6mm, nitrile rubber O-ring 6mm, industrial o-ring gasket Honduras 6mm, 6mm high pressure nitrile o-ring, 6mm hydraulic oil o-ring seal.